Almost always, but that's because vandalism occurs at a higher/bigger rate. That is; if this dude made two vandalizing edits instead of simply one, I'd be more in favor of a perma. In this case, because it's one, and just simply an immature move, I'm fine with a 24-hour to 48-hour ban. It's an extremely rare case, but I think the scale of it is an important factor.